Warp stop-motion for looms.



',PATENTBDAPR. 21,. 19os.

l A. LRHOA'DES. l WAM STOP` Mo'rronron Looms. I ABPLIOATION FILED AUG 241907 UNTTED STATES lPATENT OEEioE.

ALONZO E. .iuionnEs or HOPEDALE, MASSACHUSETTS.ASSIGNOR To DRAPERCOMPANY, or HOPEDALE, MASSACHUSETTS, A CORPORATION or MAINE.

WARP STOll-MOTION FOR LOOMS. l

Specification of Letters Patent.

lPatented April 21, 1908.

Application filed August 24, 1907. Serial N o. 389,928.

To all whom it mag] concern.'

Be it known that I, ALONZO E. RHOADES, a citizen of the United States,and resident of Hopedale, county of Worcester, State oflVlassac-husetts, have .invented an Improvement in Warp Stop-Motions forLooms, of which the following description, lin connection with theaccompanying drawing, is a specification, like letters on thedrawingreprescnting like parts.

This invention has for its object the production of novel means foreffecting antomatically the stoppage of a loom by or through failure ofa warp-thread.

In the present embodiment of my inven-t tion the release of adrop-device ordetector by such warp failure arrests a vibratable feeler,and acts through a controller to Opera-tively position a normallyquiescent and 'inoperative member, tobe engaged by a mov-1 ing part ofthe loom7 such engagement effecting release of the shipper. The meansfor controllingl the said normally quiescent member and for effectingthe vibrations of the feeler form novel features of my invention,

' and I have also made a novel feeler construction whereby the movementthereof is effected very easily and with'but littleI power.

I have so constructed and arranged the mechanismthat when a releaseddetector engages and arrests the feeler the strain upon such detectorwill bevery slight indeed.

The various novel features of my invention will be fully described in`the subjo'ined specification and particularly pointed out in the`following claims.

Figure 1 is a transverse sectional view of a sufficient portion of aloom, with one embodiment of my present invention applied Well knownconstruction, operating in usualv manner. Upon the camshaft I fixedlymount a cam 6 co eratingwith a follower 7 fast on a short roc -shaft 8mounted on the loom-frame and havinga fixe/diy attached upturned arm oractuator 9, which is vi.- brated by cooperation of the follower 'and camas the latter rotates. It will be understood that the vibrating actuatorwill swing back and forth while the loom lis running, making one comlete movement for every two beats of the ay.

I have shown the upper end of theractuator as bifurca'ted,'at 10, seeFig. 3, to receive preferably a roll'or sleeve 11, adapted to normallyenter a bevel-sided seat 12 in a controller 13, forming a slipconnection between the controller and actuator. Said controller is, bymeans of such connection, normally reci rocated by the vibratingmovement of t e actuator, the weight of the controller being sufficientto 'maintain the roll in the seat when Athe loom ,is'running properly.At its forward end the controller as pivotally connected with it at 14an elongated finger 15, sustained in proper position by a s ringlinterposed between the linger and a ug 17' on the controller, thelatter and the finger moving back'and forth in a substantiIly horizontalath, as will be manifest. The rear end o' the controller is connected bya light rod or link 18 vwith adepending arm 19 fast on a rock-shaft 20,Fig, 1, mounted at each end in a'suitabie'bracket 21 on the loom-side,the rock-'shaft extending across the loom below 4the warp 'and havingattached depending arms as 22, to the lower ends of which is secured afeeler 23. Said arms 22 form swingingv su ports for and by which the.lfeeler isA suspen ed, said feeler .being'vibratedina pathby and inunison with 'the 'reciprocating inovement'of the controller 13'; Thecontroller isfheldfrom lateral (.lisplacementnb'y the sides of thebifurcated portion 'lO'of 'thje actuator, and positioned in suchportionby its connection 18 with the feeler rock-shaft.

I have shown hereintwo'banks or series of drop devices or detectorsv24,of any suitabley extended across the loom and fixed at its ends in thebrackets 21. The detectors are suspended each from a. single\\farp-thread, between the lease-rods L, L, and their lower ends areshown as slightly prolonged, at 2S, Fig. 1, but normally theprolongations are held above or out ot the feeler path. When awarp-thread tails its detector is released and drops on its support 27,the prolongation 2S engaging and arresting the eeler 23, andimmediatelyv the arm 19 and connection 1S act to stop reciprocation ofthe controller 13. The actuator t) continues its movement, however, andthe roll l1 travels along one of the beveled sides of the seat 12 andout of the seat, as will be apparent, lifting and moving transverselythe controller as it is thus disconnected 'from the actuator. Suchli'tting of t-he cont-roller is effected on either stroke of theactuator, the stoppage ot the controller being eti'ected vwhen areleased dctec tor in either of the two series engages the feeler. rThevibrating movement of the suspended feeler 23 is efiected with verylittle power, as the constant tendency of the tceler and other parts isto return to mid-position by gravity, and the arm 1Q permits a long.

leverage to rock the shaft 20.

Inasnuich as the controller 13 is ot light weight it will be manifest.that very slight resist-ance to its normal reciprocating movement willcause disengagement of the actuator, the roll 11 slidingl easily alongthe beveled side of the seat 12, so that when a detector engages thefeeler the pressure upon said detector is reduced to a very small yamount, obviating any tendency to bend or distort the detector. Ine-ntof the controller is made etiective to cause release of the shipper 1and consequent stoppage ot the loom, and I will now cx plain the meanswherebyshipper release is etl'ccted. The knock-ofi' lever Qhas connectedwith it an arm 29, see dotted lines Fig. 1, to which is attached oneendy ot' a link 3Q extended rearwardly and at its other end pivotallyconnected with an dpturned arm 31 'last on a rock-shaft 32 mounted in abearing on a bracket 33 on the loom side. Said rockshaft at its innerend has secured to it a second armor rocking carrier 34, upon the upperlend of which is pivotally mounted a dog 35 provided with a dependinglug36 which rests upon the extended finger 15 of the con' troller 13.Referring to Fig; 1 it will be seen that the controller is thus insliding engage- 'ment with the dog and sustains the-latter in.

f a .certain position .While said carrier recipro- Cates, so that the.dog is q uiescent and at such time it is out of the path of movement ota bunter 37, herein shown as mounted on the layssword e yWhen Warpfailure arrests the teeler and stops reciprocation ofthe controller thelatter is moved transversely and lifted as the roll 11 rides out ot theseat 12, and the dog 35 is swung upward on its pivot 35X, see Fig. 2.and into the path ot the bunter. 'lhereupon the lay as it completes itsbackward stroke will cause the bunter to push against and longitudinallyot` the dog, and the carrier .'t-t will be swung back, acting throughthe arm 31 and link 30 to throw the. knock-oill lever and release theshipper. There is no appreciable movement ot the dog so long as the loomis running l'noperly, and -hence nothing tends to move the dog from itsinolwrative position into the bunter path until a warp fault occurs andthe movement of thc t'eelcr is arrested.

I yieldingly support the linger 15 on the controller in order to preventbreakage if. tor instance. the lay Ishould be back and the wcavcrtoundit necessary to swing the l'eeler by hand, thc loom being at rest. Atsuch time the bunter would bc above the dog and would prevent lifting otthe latter as the wea-ver caused longitudinal movement ot thecontroller` but the spring 1G will give. and permit the 'linger todescend a sullicicnt distance. lhe rear end ot tht` linger extends backot its pivot and rests on the top of the controller, as shown, Figs. 1and 2, so thatthe spring-inducml upward movement ot the. 'linger isthereby limited, it being understood that save in an exceptionalinstance such as above. referred to the linger moves as it it were anintegra-l or rigid part. ol" the. controller.

The means tor ell'ecting teeler vibration herein shown dispenses withthe use ot springs, and the. structure is simple. positive in itsaction, and quickly responsive lo abnormal conditions.

llaving fully described my invention. what l claim as new and desire tosecure by lJcttors Patent isz .1, ln a. loom having a lay and a` buntermovable therewith. a. shipper, and a releasing device therclor` incombination` stopmotion detectors normally suspended trom intactwarp-threads, a normally quiescent dog opera tively connected with thercl asing device. to actuatc the same when engaged by the bunter. anormally moving controller in sliding engagement with the dog, and meansto etl'ect a cha-ngc in thc position ol' the controller when a detectoris released by its warp-tln'ead. to thereby move the dog into the patho'l' the bunter.

2. In a loom having a. shipper` in combination, shipper-releasiiig meansincluding a normally quiescent and inoperativt` membei', a vibratingmember to at times coperate therewith and etlcct the release ol' theshipper, a normally moving amtrollcr in sliding engagement with andsupporting the quiescent membcn and means to ell'cct a. change in theposition ol'` the controller' and thereby cause tbc cot'ipcration ol`the vibraty,ing member and the` normally quiescent memreleasing means, anormally moving con-l troller in sliding engagement with the dog,

'and means to effect a change in the position of the controller andthereby operatively position the dog with respect to the bunter when adetector is released by its warpthread.

4. In a loom, in combination, stop-motion controlling-detectorssuspended from intact warp-threads, a shipper, releasing means thereforincluding a normally quiescent and inoperative dog, and a rockingcarrier upon which it is ivoted, a vibrating bunter to engage the ogwhen operatively positioned andv rock the carrier to effect release ofthe shiplper, a normally reciprocating controller in siding engagementwith and supporting the dog in inoperative position, 'and lmeans actingthrough the controller to lift the dog into the bunter path when adetector is released by its warp-thread.

5. In a loom, in combination, stop-motion detectors suspended by intactwarp-threads, a vibrating feeler to engage and be arrested by a releaseddetector, a controller connected with and reciprocating in unison withthe movement of the feeler, a shipper, releasing means thereforincluding a normally quiescent and inoperative `dog su ported by and insliding engagement with t e controller, a bunter on a moving part of theloom, an actuator, a slip connection between it and the.

controller, to effect reci rocation of the controller and vibration of tie feeler, arrest of the latter stopping reciprocation of the controllerand disconnecting 1t from the actuator, continued movement ofthe latterlifting the controller to thereby move the dog into the path of thebunter.

6. In a loom, a shi per, releasing means therefor,including a c og andarocking carrier on which vit is ivoted,- a bunter on a moving part ofthe o om, a controller in direct sliding engagement with and normallysustaining the dog out of the bunter path,

the controller having a beveled seat, a vibrating actuator normallycooperating with the scat and effecting reciprocatlon of the controller,and means to stop reciprocation of the controller by or through fallureof a warp-thread, the actuator at such time acting upon the beveled sideof the seat and lifting the controller to position the dog in the pathofthe bunter, 7. In a loom, a shipper, releasing means thereforincluding a pivotally mounted, bodily movable dog, a. bunter on amovingmrt of the loom, a controller in sliding engagement with and normallysustaining the dog out of the bunter path, said bunter having abevel-sided seat, a vibrating actuator normally engaging the seat toeffect reciprocation of the controller, and means to arrest thecontroller by or through failure of a warpthread, to effectdisengagement of t-he controller andits actuator, continued movement ofthe latter lifting the controller to thereby raise the dog into thebunter path.

` 8. In a loom, a shipper, releasing means therefor including apivotally mounted, bodilv movable dog, a bunter on a moving part of theloom, a controller in sliding engagement with and normally sustainingthe dog out of the bunter path, said controller having a V-shapecl seatin its under side, a vibrating actuator having aroll in normalengagement with said seat to reciprocate the controller,

and means to arrest the latter upon failure of a Warp-thread, the rollon the actuator moving out of the seat and elevating the controller to oeratively position the dog in the bunter patllf.

9. In a loom, a series of detectors suspended from intact war threads, avibratable feeler to engage and e arrested by a released detector,depending supports for the feeler, fulcrumed at their upper ends, avibrating actuator, a controller, a slip connection be-` tween it andthe actuator, to normally reciprocate said controller, a connectionbetween the controller and the feeler supports, to rock the same andvibrate the feeler, arrest of the, latter sto ping the controller andreleasing it from t ie actuator, and ship er releasing means actuated byor through t 1e controllerwhen released from theactuator.

` 10. In aloom, a series of detectors suspend-` ed from intact War-threads, a vibratable feeler to engage and fie arrested by a releaseddetector, a vibrating actuator, a controller, a slip connection betweenit and the actuator, to normally effect reciprocation of the controllerby the actuator, a connection between thefeeler and the controller, tovibrate the feeler, arrest of thelatter stopping the controller anddisconnecting it from the actuator, continued movement of the lattermoving the controller transversely, a shipper, and releasing meanstherefor the operation whereofl is effected by transverse movement ofthe controller when disconnected from the actuator. l

11. In a loom, a series of detectors suspended from intact war -threads,a vibratable feeler to, engage and e arrested by a released detector, avibrating actuator, a controller, a roll on one and a bevel-sided seatin the other, to normally cooperate and effect reciprocation of thecontroller, a connection between the latter and the lfeeler, Vto vibratesaid feeler, arrest thereof stopping the controller and disconnectingthe roll from the seat, conname to this specification, in the presenceof tinued movement ofthef attuator eleeting av tWo subsoribmg Witnesses.v transverse movement o t e yContro er, and' v 1 L shipper.releasingmeans operated b v or ALONLO E' IHODIJS' 5 through suchltransverse movement of the Witnesses:

oointroller. y FRANK J. DUTCHER,

In testimony whereof, I have signed my F. C. HODGMAN.

